This dataset captures Sh2-114, commonly known as the Dragon Nebula, through 35 hours of narrowband imaging spread across five nights in late September and early October 2025. The data comprises 420 total frames acquired with an ASKAR PHQ151 telescope and ZWO ASI2600MM Pro camera mounted on an iOptron HAE69. The exposures divide into 198 five-minute H-alpha frames through an Antlia 3nm filter, 130 OIII frames, and 92 SII frames, all using matching 3nm Antlia filters. This tri-band narrowband approach enables flexible processing into popular false-color palettes that reveal ionized hydrogen, oxygen, and sulfur structures within this emission nebula. The dataset is available as a free download under CC BY-NC 4.0 licensing, permitting copying, modification, and redistribution for non-commercial purposes.
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